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I have installed VirtualBox on Ubuntu 12.04 64bit. Now, I've bought an external USB-drive with 1.5 TB.

When I start Windows7 in VirtualBox and mount the new USB-drive, a popup-message appears, saying: "USB Device Not Recognized - One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it."

When I use the the USB-drive on Windows7 without VirtualBox, the drive works properly.

When I start Ubuntu 12.04 in VirtualBox and mount the new USB-drive, nothing happens. The new drive neither appears, nor an error-message is thrown.

When I use the the USB-drive on Ubuntu 12.04 without VirtualBox, the drive works properly.

When I use other USB-drives (2 x 250 GB (USB2.0), 1 x 500 GB (USB2.0), 1 x 1 TB (USB3.0)) and mount them in VirtualBox they also work properly.

TIA

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Things you can try:

  • Ensure the drive isn't using OS-specific firmware that requires the execution of an application for mounting. This is a common feature on flash drive and Western Digital hard drives. In such a case, you should be able to disable this using the provided utilities.
  • Reduce the number of CPUs on the guest machine to one. As per one of the messages on the link at the bottom, this has helped some people access their USB devices on their virtual guests.
  • Check "Enable USB 2.0 (EHCI) controller" in the guest's settings. This has fixed quite a few problems for me personally, and is quite easy to miss in my opinion.
  • Add a USB filter for your storage device in your guests's settings. This will ensure only your guest can access that connection to your storage device. I've used this when performing app debugging on my Android phone.

USB Device not recognized

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